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Melon flies: dosage-response and sexual competitiveness after treatment with gamma irradiation in a nitrogen atmosphere. [Dacus cucurbitae; diptera]

Journal Article · · J. Econ. Entomol.; (United States)
DOI:https://doi.org/10.1093/jee/68.6.838· OSTI ID:7192997
; ; ;

Doses of 18-19 krad of gamma irradiation were needed to produce a level of sterility of 99.5% or higher in males Dacus cucurbitae Coquillett treated in nitrogen as pupae 2 days before eclosion or as 2- or 5-day-old adults. The same level of sterility was obtained with 6-8 krad when pupae or 2-day-old adults were irradiated in air. Males irradiated in nitrogen either as pupae or as 2-day-old adults were fully competitive with normal males, but males treated in nitrogen as 5-day-old adults and males irradiated in air as 2-day-old adults or as pupae were only 40-60% as competitive as normal males. Recovery of fertility with time occurred in males treated in nitrogen as 2-day-old adults, although not in males treated in nitrogen in the late pupal stage. However, mortality in males treated in nitrogen in the pupal stage at 6 wk was about twice that of the former groups. (auth)

Research Organization:
Hawaiian Fruit Flies Lab., Honolulu
OSTI ID:
7192997
Journal Information:
J. Econ. Entomol.; (United States), Journal Name: J. Econ. Entomol.; (United States) Vol. 68:6; ISSN JEENA
Country of Publication:
United States
Language:
English

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Related Subjects

560153* -- Radiation Effects on Animals-- Invertebrates-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ADULTS
ANIMALS
ARTHROPODS
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BIOLOGICAL EFFECTS
COBALT 60
COBALT ISOTOPES
CRYOGENIC FLUIDS
DOSE-RESPONSE RELATIONSHIPS
ELECTROMAGNETIC RADIATION
ELEMENTS
FERTILITY
FLIES
FLUIDS
GAMMA RADIATION
GASES
INSECTS
INTERMEDIATE MASS NUCLEI
INTERNAL CONVERSION RADIOISOTOPES
INVERTEBRATES
IONIZING RADIATIONS
IRRADIATION
ISOMERIC TRANSITION ISOTOPES
ISOTOPES
MINUTES LIVING RADIOISOTOPES
MORTALITY
NITROGEN
NONMETALS
NUCLEI
ODD-ODD NUCLEI
PUPAE
RADIATION EFFECTS
RADIATIONS
RADIOISOTOPES
RADIOSTERILIZATION
STERILE MALE TECHNIQUE
STERILITY
STERILIZATION
YEARS LIVING RADIOISOTOPES